Automatic functional test equipment utilizing digital programmed storage means



Nov- 23, 9 v H. A. TOPP, JR.. ETAL 3,

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING I DIGITAL PROGRAMMEDSTORAGE MEANS Flled Sept. 15, 1958 55 Sheets-Sheet 1 5 1 4 2 7 l 4\ wFUNCTION A PROGRAMMER COMPARATOR GENERATOR 1T} Ff: I;

7 L |2 I9 20 e *7 l3 i :o- SYSTEM UNDER l8 TEST VISUAL INDICATORINVENTORS. HOWARD A. TOPP Jr. RALPH. s. MEGERLE BY GLENN H. SHAWATTORNEY Nov. 23, 1965 H A. TOPP, JR., ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Flled Sept. 15, 1958 35 Sheets-Sheet 3 MATRIX SWITCH 1 CONTROLPOWER CARD READER NcEa SUPPLY SWITCH CONTROL) COUNT REGISTER it I COUNTREGISTER INPUT PRINTER CONTROL '9 CONVERTE R CONTROL 26 INDICATOR ANALOGTO DIGITAL CONVERTER J INVENTORS. SYSTEM HOWARD A. TOPP Jr. UNDER TESTRALPH s. MEGERLE F|G 3 BY GLENN H. SHAW TIM ATTORNEY Nov. 23, 1965 H. A.TOPP JR.. ETAL 3 219 92 AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING 7DIGITAL PROGRAMMED STORAGE MEANS 55 Sheets-Sheet 4/I23456789I0lll2|3l4|5 Filed Sept. 15, 1958 LFOMODE 0000000 A EXT sw.com B CARD REF #1 BINARY +28 voc FUNCTION GENERATOR VALUE F ADC MODECONTROL (+28 voc) S A0c scALE- I MODE E.)

G CARD REF #2 (BINARY) 28 VDC I I I I J CARD REF. #3 (BINARY) -l2 VDC 60K CARD REFI 4 (BINARY) -I2 VDC L LL CARD REF. 5 (BINARY) -l2 VDC M ULCARD REF. 1* 6 (BINARY) -I2 V DC I23 45 6 7 89 IO II I2 l3 l4 I5 FIG. 4a

INVENTORS. HOWARD A. TOPP r J RALPH s. MEGERLE BY GLENN H. SHAW ii w ATTORNEY Nov. 23, 1965 Filed Sept. 15, 1958 DIGITAL PROGRAMMED STORAGEMEANS 35 Sheets-Sheet GER FIG. 4b

l6 l7 l8 I9 2| 22 23 24 25 26 27 2s 29 30 3I 32 O EXTERNAL swITcI-IING57 EXT sw.

PATCH MATRIX Tl MATR'X RELAY O I LFO EXTERNAL SWITCHING MODE MODECONTROL 63 I 2Q DIGITAL SWITCH MATRIX CONTROL AUG 3 AND GATE ADC 'NPUTSINPUTS No. l OUTPUT INVERTER TIMER OUT 59 O PL J T \O O OUTPUT \\B3OUTPUT B \84 c 840 87b COMPARATOR J g coMPAR T0R coM- i OUTPUT a, B2/0UTPUT B,+ a OUTPUT Q o RE%'68IZ%E 'ZE'RBI'L O 5i 0 0 INPUT PUT PRINTe2 INPUT #l O O 0 COM 0 G0 98 99 IoI l0 l6 I? Is I9 20 2| 22 23 24 25 2627 2a 29 30 3| 32 INVENTORS. HOWARD A. TOPP Jr. RALPHS. MEGERLE BY GLENNH. SHAW ATTORNEY 1965 H. A. TOPP, JR. ETAL 3,

AUTOMATI'DIC FUNCTIONAL TEST EQUIPMENT UTILIZING IGITAL PROGRAMMEDSTORAGE MEAN Flled Sept. 15, 1958 s Sheets-Sheet 6 EXT 1 CARD NO. (BOD)SW A L EXT sw. B

& EXTERNAL SWITCHING D EXTERNAL SWITCHING E EXTERNAL SWITCHING F IPRINTER ACTUAL 25 0 VALUE SECTION (D G e: AND GATE AND GATE H 1 NOOUTPUT No 2 OUTPUT +28 TO -|z voc 0 +28 TO -|2v|)c o CONVERTERN0.l0UTPUT 87c CONVERTER No.2 OUTPUT J I as B6 PARATOR COMPARATOR|O0UTPUTB 2 OOOOOK 9 92 93 TR.NQ 2 OUT PUT o OUTPUT O OUTPUT o L SERIALINPUT a 4 2 4 3 GO INPUTttZ INPUT #3 INPUT#4 O O O M l I02 9s 46 97 3334 35 3s 37 38 39 4o 41 42 43 44 45 INVENTORS. FIG. 4c HOWARD A. TOPP JrRALPH s. MEGE'RL'E BY GLENN H. SHAW ATTORNEY N 1965 H A. TOPP, JR. ETAL3,219,927

AUTOMATIC FUliCTIONAL TEST EQUIPMENT UTILIZING Filed Sept. 15, 1958DIGITAL PROGRAMMED STORAGE MEANS 55 Sheets-Sheet 7 G B'IVDS ANALOG TODIGITAL INPUT AND CONVERTER INVENTORS. A. TOPR Jr- S. MEGERLE ATTORNEYsbL Nov. 23, 1965 H. A. TOPP, JR, ETAL 3,219,927

AUToMATIc FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Flled Sept. 15, 1958 35 Sheets-Sheet 8 COMPARATOR PARALLEL If IINVENTORS. EREA S 22m- GLE N H. SHAW ATTORNEY N 3, 1965 H. A. TOPP, JR.,ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Flled Sept. 15, 1958 55 Sheets-Sheet 9 28 TO- I2V CONVERTERCONVERTER LOW FREQUENCY OSCILLATOR LOW FREQ. AMPllTUDE PRINTER M EASU RE20 in: INVENTORS.

HOWARD A. TODD|JI'- RALPH S MEGERLE GLENN ATTORNEY N 1965 H. A. TOPP,JR., ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Flled Sept. 15, 1958 35 Sheets-Sheet 10 INVERTER CONTROL PANELPATCH MATRIX INVENTORS. HOWARD A. TOPP Jr. RALPH s. MEGERLE BY GLENN H.SHAW ATTORNEY Nov. 23, 1965 H. A. TOPP, JR,, ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 :55 Sheets-Sheet 11 67 V DC I I l I 4o'0-4o'0- 4o'o- 4oo- 0A (D0 D8 9 INVENTORS.

HOWARD A. TOPP, Jr. RALPH s. MEGERLE FIG 60 BY GLENN H. SHAW JiwATTORNEY Nov. 23, 1965 H A TOPP, JR., ETAL 3,219,927

AUTOMATIC FulicTionAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMEDSTORAGE MEANS Flled Sept. 15, 1958 35 Sheets-Sheet 12 AO/DC V- SELF TESTDc INVENTORS.

HOWARD A TOPP, Jr. RALPH s. MEGERLE BYGLENN H. SHAW ATTORNEY N v- 3.1965 H. A. TOPP, JR.. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS 35 Sheets-Sheet 13 Filed Sept. 15, 1958 E D O M D A U Q POLARITYADO STOP HI SPEED LOCKOUT FIG. 6c

ATTORNEY N 3, 1965 H A. ToPP, JR.. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 35 Sheets-Sheet 14 AC- DC COM PARATOR POLARlTY INVENTORS. PP K I HOWARD A. TOPRJr.

RALPH S. MEGERLE FIG 6d BY GLENN H. SHAW ATTORNEY Nov. 23, 1965 H. A.TOPP, JR.. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 35 Sheets-Sheet 15 POLARITY INVENTORS.

M ATTORNEY Nov. 2-3, 1 H. A. TOPP, JR. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 35 Sheets-Sheet l6 400- 4 1' (be (DA HOWARD AT fi zl TURE r. 675 QUADRA RALPH s. MEGERLE BY GLENN H. SHAW ATTOR NEYFIG. 6f

Nov. 23, 1965 H A TOPP, JR., ETAL 3,219,927

AUTOMATIC FUIiCTiONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMEDSTORAGE MEANS Filed Sept. 15, 1958 35 Sheets-Sheet 1-? M @0 d) B ARDA TPY y HOW r. 6 RALPH s. MEeRLE BY GLENN H. SHAW ATTORNE Y Nov. 23, 1965H. A. TOPP, JR. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 35 Sheets-Sheet 18 25V DC DIGITAL OUTPUTZUO-i mZZOO 400 INPUT POWER GROUND SIGNAL GROUND C HAS SIS GROUND [rum-l8V DO FIG. 6h

INVENTORS. HOWARD A. TOPP, Jr. RALPH S. MEGERLE GLENN H. SHAW ATTORNEYNov. 23, 1965 H. A. TOPP, JR.. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Filed Sept. 15, 1958 35 Sheets-Sheet 19 o I o m 9 H I 2 I8 I L K)o I m i zkww ATTORNEY Nov. 23, 1965 H A. TOPP, JR. ETAL 3,219,927

AUTOMATIC FUNCTIONAL TEST EQUIPMENT UTILIZING DIGITAL PROGRAMMED STORAGEMEANS Flled Sept. 15, 1958 35 Sheets-Sheet 20 ANALOG R EGISTER INPUT 7l6DIGITAL OUTPUT DIGITAL T0 ANALOG CONVERTER FIG. 7A

ABOVE UPPER LIMIT 939 l I50 OR MONOSTABLE GATE MULTIVIBRATOR :l5d BELOWLOWER LIMIT Isb FIG. 9A

INVENTORS HOWARD A. TOPP JR. RALPH S. MEGERLE GLENN H. SHAW ATTORNEY

1. IN AUTOMATIC FUNCTIONAL TEST EQUIPMENT, A PROGRAMMER COMPRISINGSTORAGE MEANS HAVING INFORMATION STORED THEREIN, SAID INFORMATIONCOMPRISING INFORMATION AS TO THE ELECTRICAL TEST SIGNALS TO BE APPLIED,THE SELECTION OF INPUT LEADS TO AN OBJECT UNDER TEST, THE SELECTION OFOUTPUT LEADS FROM AN OBJECT UNDER TEST, AND REFERENCE DIGITAL SIGNALSINDICATING ACCEPTABILITY OR NON-ACCEPTABILITY OF THE RESPONSE OF THEOBJECT UNDER TEST, MEANS FOR GENERATING AN ELECTRICAL TEST SIGNAL UNDERTHE CONTROL OF SID STORED INFORMATION AS TO ELECTRICAL TEST SIGNALS TOBE APPLIED TO SAID OBJECT UNDER TEST, CONNECTION MEANS FOR APPLYING SAIDGENERATED ELECTRICAL TEST SIGNAL TO SAID OBJECT UNDER TEST UNDER THECONTROL OF SAID INPUT LEAD INFORMATION STORED IN SAID STORAGE MEANS,CONNECTION MEANS FOR SELECTING PARTICULAR OUTPUT LEADS OF THE OBJECTUNDER TEST UNDER THE CONTROL OF SAID OUTPUT LEAD SELECTION INFORMATIONSTORED IN SAID STORAGE MEANS, AN ANALOG TO DIGITAL CONVERTER, AND ADIGITAL COMPARATOR CONNECTED TO RECEIVE THE OUTPUT OF SAID ANALOG TODIGITAL CONVERTER AND SAID REFERENCE DIGITAL SIGNALS INDICATINGACCEPTABILITY OR NON-ACCEPTABILITY OF RESPONSE OF THE OBJECT UNDER TEST,FOR COMPARISON PURPOSES.